Method and apparatus for filtering gas with a moving...

Details Method and apparatus for filtering gas with a moving... Method and apparatus for filtering gas with a moving...

B - Operations, Transporting

01

D

B01D 46/32 (2006.01) B01D 46/34 (2006.01)

Patent

CA 2458155

A method and apparatus for filtering gas (58) with a moving granular filter bed (48) involves moving a mass of particulate filter material (48) downwardly through a filter compartment (35) ; tangentially introducing gas into the compartment (54) to move in a cyclonic path downwardly around the moving filter material (48); diverting the cyclonic path (58) to a vertical path (62) to cause the gas to directly interface with the particulate filter material (48); thence causing the gas to move upwardly through the filter material (48) through a screened partition (24, 32) into a static upper compartment (22) of a filter compartment for exodus (56) of the gas which has passed through the particulate filter material (48).

La présente invention concerne un procédé et un appareil utilisés pour filtrer du gaz (58) à l'aide d'un lit filtrant granulaire mobile (48). Le procédé implique de faire descendre une masse de matière filtrante (48) particulaire par un compartiment de filtre (35); à introduire tangentiellement du gaz dans le compartiment (54) pour qu'il se déplace suivant un chemin cyclonique dirigé vers le bas, autour de la matière filtrante mobile (48); à dévier le chemin cyclonique (58) sur un chemin vertical (62) pour que le gaz se trouve directement en contact avec la matière filtrante mobile (48); ceci ayant pour effet de faire remonter le gaz à travers la matière filtrante (48) par une séparation dotée d'un tamis (24, 32) jusqu'à l'intérieur d'un compartiment supérieur statique (22) d'un compartiment de filtre pour laisser sortir le gaz (56) ayant traversé la matière filtrante particulaire (48).

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